| Level/ Type |
Code |
Display Name |
Code System |
| 0‑L |
C0282440
|
Randomized Controlled Trials as Topic (Intellectual Product)
|
Unified Medical Language System |
| 0‑L |
C0206034
|
Clinical Trials, Randomized (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0150104
|
Nonrandomized Control Trials (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C2985410
|
Non-Randomized Controlled Trials as Topic (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C1272460
|
Not Applicable (Qualitative Concept)
|
Unified Medical Language System |
|